<template>
  <div class="login-container">
    <div class="formGround">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">

      <div class="title-container">
        <h3 class="title">登 录</h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder="Username"
          name="username"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="Password"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="showVcode">登 录</el-button>

      <!-- <div class="tips">
        <el-button type="text" @click="reg">前往注册</el-button>
      </div> -->

    </el-form>
    </div>

    <Vcode
      :imgs="[img1, img2, img3, img4, img5, img6, img7, img8, img9, img10]" 
      
      :show="isShowVcode"
      @success="success"                                              
      @fail="fails"                                                   
      @close="closeRe"                                      
      failText="验证失败！"                           
      successText="会滑动验证码，未来可期！"                     
      sliderText="滑一滑，滑到外婆家"                           
      :canvasWidth="width"                                   
      :canvasHeight="height"                                 
    />
  </div>
</template>

<script>
import { validUsername } from '@/utils/validate'
import router from '@/router'

import Vcode from "vue-puzzle-vcode";
import img1 from "@/assets/rePhoto/1.jpg";
import img2 from "@/assets/rePhoto/2.jpg";
import img3 from "@/assets/rePhoto/3.jpg";
import img4 from "@/assets/rePhoto/4.jpg";
import img5 from "@/assets/rePhoto/5.jpg";
import img6 from "@/assets/rePhoto/6.jpg";
import img7 from "@/assets/rePhoto/7.jpg";
import img8 from "@/assets/rePhoto/8.jpg";
import img9 from "@/assets/rePhoto/9.jpg";
import img10 from "@/assets/rePhoto/10.jpg";

export default {
  components: { Vcode },
  name: 'Login',
  data() {
    // const validateUsername = (rule, value, callback) => {
    //   if (!validUsername(value)) {
    //     callback(new Error('Please enter the correct user name'))
    //   } else {
    //     callback()
    //   }
    // }
    // const validatePassword = (rule, value, callback) => {
    //   if (value.length < 6) {
    //     callback(new Error('The password can not be less than 6 digits'))
    //   } else {
    //     callback()
    //   }
    // }
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', message: '请输入用户名', }],
        password: [{ required: true, trigger: 'blur', message: '请输入密码', }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined,

      
      //图片滑动验证的错误次数
      //自定义图片的验证部分（返回值部分）
      img1,
      img2,
      img3,
      img4,
      img5,
      img6,
      img7,
      img8,
      img9,
      img10,
      photoHua: 0,
      isShowVcode: false,
      width:310,
      height:160,

    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    reg() {
      this.$router.push({path: '/register'})
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || '/' })
            this.loading = false
          }).catch(() => {
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },


    showVcode() {
      this.isShowVcode = true;
    },

    success() {
      this.$message({
        message: "O(∩_∩)O！验证通过~",
        type: "success",
      });
      this.isShowVcode = false;
      this.handleLogin();
    },



      //失败的回调，失败的逻辑是，用户失败指定次数之后，加入弹窗提示信息
      fails() {
      this.photoHua += 1;
      if (this.photoHua > 5) {
        this.$message({
          message:
            "其实ψ(*｀ー´)ψ......你要是一直拼不成功，我会让你一直拼下去的哟...",
          type: "warning",
        });
      }
    },
    //点击图片验证的背景部分事件
    closeRe() {
      this.$message({
        message: "请完成滑动验证，验证成功之后验证框会自动消失...(๑╹◡╹)ﾉ",
        type: "warning",
      });
    },




  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg:"@";
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  background-image: url('~@/assets/images/loginbg.jpg');
  overflow: hidden;
  background-size: 100% 100%;
  background-repeat: no-repeat;
  position: absolute;
  display: flex;
justify-content: center;
align-items: center;

  .formGround{
    width: 800px;
    height: 400px;
    position: relative;
    // background-color: #68b3db;
  }
  .login-form {
    position: relative;
    width: 400px;
    max-width: 100%;
    // padding: 160px 35px 0;
    padding: 20px;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      color: #3383b4;
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: #66B1FF;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
